This is the steps how i solved it.
the answer is 39.8
Um Plan B would be two dollars cheaper than plan A ..
I set the equations up like this :
5+2.50x=
24+1.50x=
Only because thats how many movies she plans on watching.
5+2.50(21)=57.50
24+1.50(21)=55.50
1st integer: x
2nd integer: x+2
Multiply them: x(x+2)=440
X^2+2x-440=0
Use the quadratic formula
x=-22 or x=20
Since x must be a positive integer number, x=20.
Answer:
1st: 20.
2nd: 22
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Step-by-step explanation:

The equality used is Subtraction property of equality
Option A is correct
Step-by-step explanation:
We need to identify which option best explains or justifies Step 1.
Step 1 is: 
The given equation is: 
To get the equation for step 1 we need to subtract c on both sides of equation i.e using subtraction property of equality


So, The equality used is Subtraction property of equality
Option A is correct.
Keywords: Solving Quadratic Equations
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